### The TaskJuggler User Manual

Project Management beyond Gantt Chart Drawing

<< istask << | Table Of Contents | >> journalattributes >>

Keyword | isvalid

Purpose | Returns false if argument is not an assigned or properly computed value.
Syntax | `isvalid ( <ID> )`
Arguments | none
Context | functions

<< istask << | Table Of Contents | >> journalattributes >>

Copyright (c) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 by Chris Schlaeger <chris@linux.com>.TaskJuggler is a trademark of Chris Schlaeger.